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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-06-02 18:25:00 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-06-02 18:25:00 +0000
commit0c9b89b1018eb7760708ee5b080cd96846861328 (patch)
treef43a2b20292bba90931fe84e67aca8fb0013a984 /src/iemlib1/soundfile_info.c
parentd56ec9d039c904e9230137254ff2fe281320eed9 (diff)
updated to release-1.16
svn path=/trunk/externals/iemlib/; revision=3102
Diffstat (limited to 'src/iemlib1/soundfile_info.c')
-rw-r--r--src/iemlib1/soundfile_info.c522
1 files changed, 261 insertions, 261 deletions
diff --git a/src/iemlib1/soundfile_info.c b/src/iemlib1/soundfile_info.c
index f7cbf6b..c07f107 100644
--- a/src/iemlib1/soundfile_info.c
+++ b/src/iemlib1/soundfile_info.c
@@ -1,261 +1,261 @@
-/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
-
-iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2003 */
-
-#ifdef NT
-#pragma warning( disable : 4244 )
-#pragma warning( disable : 4305 )
-#endif
-
-#include "m_pd.h"
-#include "iemlib.h"
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <math.h>
-
-#define SFI_HEADER_SAMPLERATE 0
-#define SFI_HEADER_FILENAME 1
-#define SFI_HEADER_MULTICHANNEL_FILE_LENGTH 2
-#define SFI_HEADER_HEADERBYTES 3
-#define SFI_HEADER_CHANNELS 4
-#define SFI_HEADER_BYTES_PER_SAMPLE 5
-#define SFI_HEADER_ENDINESS 6
-
-#define SFI_HEADER_SIZE 7
-
-
-
-/* -------------------- soundfile_info ------------------------------- */
-
-static t_class *soundfile_info_class;
-
-typedef struct _soundfile_info
-{
- t_object x_obj;
- long *x_begmem;
- int x_size;
- t_atom x_atheader[SFI_HEADER_SIZE];
- t_canvas *x_canvas;
- void *x_list_out;
-} t_soundfile_info;
-
-static short soundfile_info_str2short(char *cvec)
-{
- short s=0;
- unsigned char *uc=(unsigned char *)cvec;
-
- s += (short)(*uc);
- s += (short)(*(uc+1)*256);
- return(s);
-}
-
-static long soundfile_info_str2long(char *cvec)
-{
- long l=0;
- unsigned char *uc=(unsigned char *)cvec;
-
- l += (long)(*uc);
- l += (long)(*(uc+1)*256);
- l += (long)(*(uc+2)*65536);
- l += (long)(*(uc+3)*16777216);
- return(l);
-}
-
-static void soundfile_info_read(t_soundfile_info *x, t_symbol *filename)
-{
- char completefilename[400];
- int i, n, n2, n4, filesize, read_chars, header_size=0, ch, bps, sr;
- FILE *fh;
- t_atom *at;
- char *cvec;
- long ll;
- short ss;
-
- if(filename->s_name[0] == '/')/*make complete path + filename*/
- {
- strcpy(completefilename, filename->s_name);
- }
- else if(((filename->s_name[0] >= 'A')&&(filename->s_name[0] <= 'Z')||
- (filename->s_name[0] >= 'a')&&(filename->s_name[0] <= 'z'))&&
- (filename->s_name[1] == ':')&&(filename->s_name[2] == '/'))
- {
- strcpy(completefilename, filename->s_name);
- }
- else
- {
- strcpy(completefilename, canvas_getdir(x->x_canvas)->s_name);
- strcat(completefilename, "/");
- strcat(completefilename, filename->s_name);
- }
-
- fh = fopen(completefilename,"rb");
- if(!fh)
- {
- post("soundfile_info_read: cannot open %s !!\n", completefilename);
- }
- else
- {
- n = x->x_size;
- n2 = sizeof(short) * x->x_size;
- n4 = sizeof(long) * x->x_size;
- fseek(fh, 0, SEEK_END);
- filesize = ftell(fh);
- fseek(fh,0,SEEK_SET);
- read_chars = (int)fread(x->x_begmem, sizeof(char), n4, fh) /2;
- fclose(fh);
-// post("read chars = %d", read_chars);
- cvec = (char *)x->x_begmem;
- if(read_chars > 4)
- {
- if(strncmp(cvec, "RIFF", 4))
- {
- post("soundfile_info_read-error: %s is no RIFF-WAVE-file", completefilename);
- goto soundfile_info_end;
- }
- header_size += 8;
- cvec += 8;
- if(strncmp(cvec, "WAVE", 4))
- {
- post("soundfile_info_read-error: %s is no RIFF-WAVE-file", completefilename);
- goto soundfile_info_end;
- }
- header_size += 4;
- cvec += 4;
-
- for(i=header_size/2; i<read_chars; i++)
- {
- if(!strncmp(cvec, "fmt ", 4))
- goto soundfile_info_fmt;
- header_size += 2;
- cvec += 2;
- }
- post("soundfile_info_read-error: %s has at begin no format-chunk", completefilename);
- goto soundfile_info_end;
-
-soundfile_info_fmt:
- header_size += 4;
- cvec += 4;
- ll = soundfile_info_str2long(cvec);
- if(ll != 16)
- {
- post("soundfile_info_read-error: %s has a format-chunk not equal to 16", completefilename);
- goto soundfile_info_end;
- }
- header_size += 4;
- cvec += 4;
- ss = soundfile_info_str2short(cvec);
- /* format */
- if(ss != 1) /* PCM = 1 */
- {
- post("soundfile_info_read-error: %s is not PCM-format coded", completefilename);
- goto soundfile_info_end;
- }
- header_size += 2;
- cvec += 2;
- ss = soundfile_info_str2short(cvec);
- /* channels */
- if((ss < 1) || (ss > 100))
- {
- post("soundfile_info_read-error: %s has no common channel-number", completefilename);
- goto soundfile_info_end;
- }
- SETFLOAT(x->x_atheader+SFI_HEADER_CHANNELS, (float)ss);
- ch = ss;
- header_size += 2;
- cvec += 2;
- ll = soundfile_info_str2long(cvec);
- /* samplerate */
- if((ll > 400000) || (ll < 200))
- {
- post("soundfile_info_read-error: %s has no common samplerate", completefilename);
- goto soundfile_info_end;
- }
- SETFLOAT(x->x_atheader+SFI_HEADER_SAMPLERATE, (float)ll);
- sr = ll;
- header_size += 4;
- cvec += 4;
-
- header_size += 4; /* bytes_per_sec */
- cvec += 4;
- ss = soundfile_info_str2short(cvec);
-
- /* bytes_per_sample */
- if((ss < 1) || (ss > 100))
- {
- post("soundfile_info_read-error: %s has no common number of bytes per sample", completefilename);
- goto soundfile_info_end;
- }
- SETFLOAT(x->x_atheader+SFI_HEADER_BYTES_PER_SAMPLE, (float)(ss/ch));
- bps = ss;
- header_size += 2;
- cvec += 2;
-
- header_size += 2; /* bits_per_sample */
- cvec += 2;
-
- for(i=header_size/2; i<read_chars; i++)
- {
- if(!strncmp(cvec, "data", 4))
- goto soundfile_info_data;
- header_size += 2;
- cvec += 2;
- }
- post("soundfile_info_read-error: %s has at begin no data-chunk", completefilename);
- goto soundfile_info_end;
-
-soundfile_info_data:
- header_size += 8;
- cvec += 8;
-
- SETFLOAT(x->x_atheader+SFI_HEADER_HEADERBYTES, (float)header_size);
-
- filesize -= header_size;
- filesize /= bps;
- SETFLOAT(x->x_atheader+SFI_HEADER_MULTICHANNEL_FILE_LENGTH, (float)filesize);
- SETSYMBOL(x->x_atheader+SFI_HEADER_ENDINESS, gensym("l"));
- SETSYMBOL(x->x_atheader+SFI_HEADER_FILENAME, gensym(completefilename));
-
-/* post("ch = %d", ss);
- post("sr = %d", ll);
- post("bps = %d", ss/ch);
- post("head = %d", header_size);
- post("len = %d", filesize);*/
-
- outlet_list(x->x_list_out, &s_list, SFI_HEADER_SIZE, x->x_atheader);
-
-
-soundfile_info_end:
-
- ;
- }
- }
-}
-
-static void soundfile_info_free(t_soundfile_info *x)
-{
- freebytes(x->x_begmem, x->x_size * sizeof(long));
-}
-
-static void *soundfile_info_new(void)
-{
- t_soundfile_info *x = (t_soundfile_info *)pd_new(soundfile_info_class);
-
- x->x_size = 10000;
- x->x_begmem = (long *)getbytes(x->x_size * sizeof(long));
- x->x_list_out = outlet_new(&x->x_obj, &s_list);
- x->x_canvas = canvas_getcurrent();
- return (x);
-}
-
-/* ---------------- global setup function -------------------- */
-
-void soundfile_info_setup(void)
-{
- soundfile_info_class = class_new(gensym("soundfile_info"), (t_newmethod)soundfile_info_new,
- (t_method)soundfile_info_free, sizeof(t_soundfile_info), 0, 0);
- class_addmethod(soundfile_info_class, (t_method)soundfile_info_read, gensym("read"), A_SYMBOL, 0);
- class_sethelpsymbol(soundfile_info_class, gensym("iemhelp/help-soundfile_info"));
-}
-
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#include "m_pd.h"
+#include "iemlib.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+
+#define SFI_HEADER_SAMPLERATE 0
+#define SFI_HEADER_FILENAME 1
+#define SFI_HEADER_MULTICHANNEL_FILE_LENGTH 2
+#define SFI_HEADER_HEADERBYTES 3
+#define SFI_HEADER_CHANNELS 4
+#define SFI_HEADER_BYTES_PER_SAMPLE 5
+#define SFI_HEADER_ENDINESS 6
+
+#define SFI_HEADER_SIZE 7
+
+
+
+/* --------------------------- soundfile_info -------------------------------- */
+/* -- reads only header of a wave-file and outputs the important parameters -- */
+
+static t_class *soundfile_info_class;
+
+typedef struct _soundfile_info
+{
+ t_object x_obj;
+ long *x_begmem;
+ int x_size;
+ t_atom x_atheader[SFI_HEADER_SIZE];
+ t_canvas *x_canvas;
+ void *x_list_out;
+} t_soundfile_info;
+
+static short soundfile_info_str2short(char *cvec)
+{
+ short s=0;
+ unsigned char *uc=(unsigned char *)cvec;
+
+ s += (short)(*uc);
+ s += (short)(*(uc+1)*256);
+ return(s);
+}
+
+static long soundfile_info_str2long(char *cvec)
+{
+ long l=0;
+ unsigned char *uc=(unsigned char *)cvec;
+
+ l += (long)(*uc);
+ l += (long)(*(uc+1)*256);
+ l += (long)(*(uc+2)*65536);
+ l += (long)(*(uc+3)*16777216);
+ return(l);
+}
+
+static void soundfile_info_read(t_soundfile_info *x, t_symbol *filename)
+{
+ char completefilename[400];
+ int i, n, n2, n4, filesize, read_chars, header_size=0, ch, bps, sr;
+ FILE *fh;
+ t_atom *at;
+ char *cvec;
+ long ll;
+ short ss;
+
+ if(filename->s_name[0] == '/')/*make complete path + filename*/
+ {
+ strcpy(completefilename, filename->s_name);
+ }
+ else if(((filename->s_name[0] >= 'A')&&(filename->s_name[0] <= 'Z')||
+ (filename->s_name[0] >= 'a')&&(filename->s_name[0] <= 'z'))&&
+ (filename->s_name[1] == ':')&&(filename->s_name[2] == '/'))
+ {
+ strcpy(completefilename, filename->s_name);
+ }
+ else
+ {
+ strcpy(completefilename, canvas_getdir(x->x_canvas)->s_name);
+ strcat(completefilename, "/");
+ strcat(completefilename, filename->s_name);
+ }
+
+ fh = fopen(completefilename,"rb");
+ if(!fh)
+ {
+ post("soundfile_info_read: cannot open %s !!\n", completefilename);
+ }
+ else
+ {
+ n = x->x_size;
+ n2 = sizeof(short) * x->x_size;
+ n4 = sizeof(long) * x->x_size;
+ fseek(fh, 0, SEEK_END);
+ filesize = ftell(fh);
+ fseek(fh,0,SEEK_SET);
+ read_chars = (int)fread(x->x_begmem, sizeof(char), n4, fh) /2;
+ fclose(fh);
+ // post("read chars = %d", read_chars);
+ cvec = (char *)x->x_begmem;
+ if(read_chars > 4)
+ {
+ if(strncmp(cvec, "RIFF", 4))
+ {
+ post("soundfile_info_read-error: %s is no RIFF-WAVE-file", completefilename);
+ goto soundfile_info_end;
+ }
+ header_size += 8;
+ cvec += 8;
+ if(strncmp(cvec, "WAVE", 4))
+ {
+ post("soundfile_info_read-error: %s is no RIFF-WAVE-file", completefilename);
+ goto soundfile_info_end;
+ }
+ header_size += 4;
+ cvec += 4;
+
+ for(i=header_size/2; i<read_chars; i++)
+ {
+ if(!strncmp(cvec, "fmt ", 4))
+ goto soundfile_info_fmt;
+ header_size += 2;
+ cvec += 2;
+ }
+ post("soundfile_info_read-error: %s has at begin no format-chunk", completefilename);
+ goto soundfile_info_end;
+
+soundfile_info_fmt:
+ header_size += 4;
+ cvec += 4;
+ ll = soundfile_info_str2long(cvec);
+ if(ll != 16)
+ {
+ post("soundfile_info_read-error: %s has a format-chunk not equal to 16", completefilename);
+ goto soundfile_info_end;
+ }
+ header_size += 4;
+ cvec += 4;
+ ss = soundfile_info_str2short(cvec);
+ /* format */
+ if(ss != 1) /* PCM = 1 */
+ {
+ post("soundfile_info_read-error: %s is not PCM-format coded", completefilename);
+ goto soundfile_info_end;
+ }
+ header_size += 2;
+ cvec += 2;
+ ss = soundfile_info_str2short(cvec);
+ /* channels */
+ if((ss < 1) || (ss > 100))
+ {
+ post("soundfile_info_read-error: %s has no common channel-number", completefilename);
+ goto soundfile_info_end;
+ }
+ SETFLOAT(x->x_atheader+SFI_HEADER_CHANNELS, (float)ss);
+ ch = ss;
+ header_size += 2;
+ cvec += 2;
+ ll = soundfile_info_str2long(cvec);
+ /* samplerate */
+ if((ll > 400000) || (ll < 200))
+ {
+ post("soundfile_info_read-error: %s has no common samplerate", completefilename);
+ goto soundfile_info_end;
+ }
+ SETFLOAT(x->x_atheader+SFI_HEADER_SAMPLERATE, (float)ll);
+ sr = ll;
+ header_size += 4;
+ cvec += 4;
+
+ header_size += 4; /* bytes_per_sec */
+ cvec += 4;
+ ss = soundfile_info_str2short(cvec);
+
+ /* bytes_per_sample */
+ if((ss < 1) || (ss > 100))
+ {
+ post("soundfile_info_read-error: %s has no common number of bytes per sample", completefilename);
+ goto soundfile_info_end;
+ }
+ SETFLOAT(x->x_atheader+SFI_HEADER_BYTES_PER_SAMPLE, (float)(ss/ch));
+ bps = ss;
+ header_size += 2;
+ cvec += 2;
+
+ header_size += 2; /* bits_per_sample */
+ cvec += 2;
+
+ for(i=header_size/2; i<read_chars; i++)
+ {
+ if(!strncmp(cvec, "data", 4))
+ goto soundfile_info_data;
+ header_size += 2;
+ cvec += 2;
+ }
+ post("soundfile_info_read-error: %s has at begin no data-chunk", completefilename);
+ goto soundfile_info_end;
+
+soundfile_info_data:
+ header_size += 8;
+ cvec += 8;
+
+ SETFLOAT(x->x_atheader+SFI_HEADER_HEADERBYTES, (float)header_size);
+
+ filesize -= header_size;
+ filesize /= bps;
+ SETFLOAT(x->x_atheader+SFI_HEADER_MULTICHANNEL_FILE_LENGTH, (float)filesize);
+ SETSYMBOL(x->x_atheader+SFI_HEADER_ENDINESS, gensym("l"));
+ SETSYMBOL(x->x_atheader+SFI_HEADER_FILENAME, gensym(completefilename));
+
+ /* post("ch = %d", ss);
+ post("sr = %d", ll);
+ post("bps = %d", ss/ch);
+ post("head = %d", header_size);
+ post("len = %d", filesize);*/
+
+ outlet_list(x->x_list_out, &s_list, SFI_HEADER_SIZE, x->x_atheader);
+
+
+soundfile_info_end:
+
+ ;
+ }
+ }
+}
+
+static void soundfile_info_free(t_soundfile_info *x)
+{
+ freebytes(x->x_begmem, x->x_size * sizeof(long));
+}
+
+static void *soundfile_info_new(void)
+{
+ t_soundfile_info *x = (t_soundfile_info *)pd_new(soundfile_info_class);
+
+ x->x_size = 10000;
+ x->x_begmem = (long *)getbytes(x->x_size * sizeof(long));
+ x->x_list_out = outlet_new(&x->x_obj, &s_list);
+ x->x_canvas = canvas_getcurrent();
+ return (x);
+}
+
+/* ---------------- global setup function -------------------- */
+
+void soundfile_info_setup(void)
+{
+ soundfile_info_class = class_new(gensym("soundfile_info"), (t_newmethod)soundfile_info_new,
+ (t_method)soundfile_info_free, sizeof(t_soundfile_info), 0, 0);
+ class_addmethod(soundfile_info_class, (t_method)soundfile_info_read, gensym("read"), A_SYMBOL, 0);
+ class_sethelpsymbol(soundfile_info_class, gensym("iemhelp/help-soundfile_info"));
+}